baber/WOPTO huggingface dataset:
Patent GB-251644-A (GB)
Title: Improved manufacture of acid dyestuffs of the rhodamine series
IPC: C09B11/24
Filed: 1926-04-29
Abstract: 251,644. Soc. Anon. Durand et Huguenin. May 4, 1925, [Convention date]. Phthalein dyes.-Acid dyes of the rhodamine series are obtained by condensing an aryl-maminophenol with phthalic anhydride, or a substitution product thereof, in presence of a sulphonating agent, whereby the formation and sulphonation of the dyestuff takes place in one operation. In examples (1) o-tolyl-m-aminophenol. phthalic anhydride and sulphuric acid mono-hydrate are melted together and maintained at a temperature of 140-170‹ C. until the mass solidifies, when the dyestuff is dissolved in dilute alkali and isolated by salting out or evaporation; it dyes wool in clear bluish-red tints, which are redder than those yielded by the dyestuff obtained by a subsequent sulphonation of the corresponding rhodamine, and (2) xylidylm-aminophenol (from 1 : 3-dimethyl-2-aminobenzene and resorcinol) and phthalic anhydride are melted together, sulphuric acid monohydrate is added gradually to the molten mass, which is then kept at 170‹ C. until it solidifies; the product, isolated in the same manner as in example (1), dyes wool clear red tints, which are more yellowish than those obtained with the body made by subsequent sulphonation. Substituted phthalic anhydrides, such as dichlor- or tetrachlor-phthalic anhydrides, may be used.
Patent GB-769747-A (GB)
Title: An improved ceramic frame grid
IPC: H01J19/38
Filed: 1955-04-19
Abstract: 769,747. Soldering. SYLVANIA ELECTRIC PRODUCTS, Inc. April 19, 1955 [April 19, 1954], No. 11319/55. Class 83 (4). [Also in Groups XXXVI and XL (a)] A grid comprises a ceramic support 12 having on one face a molymanganese coating 14, to which coating is secured the grid structure 16. The coating may be an 80 per cent molybdenum and 20 per cent manganese powder mixture, painted on in dilute suspension, and fired in a Wet hydrogen atmosphere. The tungsten wires 16 are brazed to the coating in a similar atmosphere, using a nickel-plated gold-silver alloy as brazing compound.
Patent GB-473847-A (GB)
Title: Improvements in the collection of dust from the gases from cement and like kilns
IPC: F27B7/20
Filed: 1936-04-20
Abstract: In the wet process for the manufacture of cement, dust is removed from the kiln gases by causing them to pass through a porous mass which is moistened by slurry of such dilutions that it will acquire normal consistency by taking up dust.
Patent GB-399422-A (GB)
Title: Safety razor
IPC: B26B21/38
Filed: 1933-04-18
Abstract: 399,422. Safety razors. DEHN, F. B., 103, Kingsway, London.-(Harris, J. W.; 667, South June Street, Los Angeles, U.S.A.) April 18, 1933, No. 11391. [Class 30.] The blade 10 of a safety razor is reciprocated longitudinally by an eccentric pin 27 on the end of a shaft 15 enclosed in the e tubular handle 1 and rotated by frictionallv engaging a knurled part 25 of it, exposed by a cut-out 26 of the tubular handle, and kept rotating, for shaving periods of from five to ten minutes only, by the kinetic energy of a flywheel 24 secured to the lower end of the shaft. The shaft may be set in motion by drawing the razor rapidly over a cord or strip of rubber engaging the knurled shaft-part 25. In the modification, shown in Fig. 4, the exposed part of the shaft 15a carries a pinion meshing with a wheel 43 journalled in lugs on the handle and rotated by drawing it over the hand or a strop. In both forms, the shaft 15 is journalled at it upper end in a bushing 17 having bevelled sides to reduce its bearing area, and at its lower end it is reduced to form a pin bearing in a bushing 20 in a cap 21 which screws on to the enlarged flywheel-housing. The handle 1 rigidly or integrally carries a guard-plate 3 having guideposts 12 slidably engaging end-notches 14 in the blade 10. The blade is retained on raised seating-ridges 8, 9, along the rear and front edges of the guard, by a clamping-plate 4 pivoted along on'e end 5 and secured to the guard at the other end by suitable means, not described. The eccentric pin 27 engages a transverse central slot 28 in the blade.
Patent GB-674731-A (GB)
Title: Improved electro-chemical electrode
Inventor: FOSTER DAVID BLYTHE
IPC: C25B11/12
Filed: 1949-04-29
Abstract: 674,731. Electrodes for electro-chemical cells. C.D. PATENTS, Ltd. April 11, 1950 [April 29, 1949], No. 11505/49. Class 41. [Also in Group XI] A composite carbon electrode suitable for example in the electrolytic production of chlorine and fluorine gases, comprises a relatively thin sheet or layer of hard impermeable carbon cemented to a block of electro-graphitic carbon of high electric conductivity, the latter acting as the main lead-in or currentcarrying device. The impermeable carbon may be produced by the process described in any of Specifications 619,967, 648,539, 651,435 and 673,003, [all in Group V]. The cementing of the two bodies may be effected by a method such as described in Specification 620,998, [Group II]. As shown, hard impermeable carbon 15 is of tubular form with a closed end 16 and an electro-graphitized carbon rod 17 is cemented centrally inside.
Patent GB-455016-A (GB)
Title: Improvements relating to pressure reducing valves or regulators
IPC: G05D16/16
Filed: 1935-04-13
Abstract: 455,016. Pressure-regulators. AULD & SONS, Ltd., D., and GRAHAM, J., Whitevale Foundry, Rowchester Street, Glasgow. April 13, 1935, No. 11516. [Class 135] A pressure-regulator of the kind having a double beat valve member actuated by fluid from the low pressure side of the valve under the control of an auxiliary valve has both main and auxiliary valves actuated by spring-loaded metallic bellows. In the form shown in the Figure, the open end of the bellows 10 has a flange 11 clamped against the casing by a cover plate while the closed end 10<a> is clamped against a shoulder on the main valve spindle by a member 14 screwed on to a reduced part of the spindle. The member 14 also serves as an abutment for the spring 13 which bears at the other end against an adjusting screw 15 carried by a bridge 16 supported by pillars on the main casing. The auxiliary valve 24 which controls the connection between the main actuating chamber 8 and the exhaust conduit 4 is similarly secured to a bellows 20 by the abutment 25 for the loading spring 27. This spring is housed in a cylindrical casing 22 below the bellows and is adjusted by a screw 29. The bellows may be loaded by springs arranged parallel to the valve spindle and coupled to it a lever or arranged at right angles to the spindle and coupled by a bell-crank lever. Specifications 253,466, 291,308, [both in Class 135], and 455,015 are referred to.
Patent GB-752934-A (GB)
Title: Foldable closure
IPC: E06B3/94
Filed: 1954-04-21
Abstract: 752,934. Rectilinear-motion bearings. NEW CASTLE PRODUCTS, Inc. April 21, 1954 [July 24, 1953], No. 11527/54. Class 12 (1). [Also in Group X] A folding door, or partition (see Group X), is suspended from a top rail 30 by means of single and double slide blocks 59, 66 which have side grooves 71 for slidably engaging the inturned flanges of the rail 30, the single slide blocks 59 being connected to certain of the short pintles 55 of the upper lazytong structure of the door, or partition, by means of L-shaped hangers 58, which hook over parts 70 of the blocks, and the double slide blocks 66 being attached to each lead post 63 by means of a spring member 67 which snaps into the top of the respective lead post and has two hooks 69 which engage the portions 70 of the blocks 66.
Patent GB-738752-A (GB)
Title: Improvements in or relating to the preparation of new steroid enol esters
Inventor: OUGHTON JOHN FRANCIS
IPC: C07J9/00
Filed: 1952-05-08
Abstract: The invention comprises enol acylates of the formula <FORM:0738752/IV (b)/1> wherein R1 is an esterified hydroxy group and R2 is an acyloxy group, together with a process for their preparation by treating 3b -hydroxy-11-keto bisnor allocholan-22-aldehyde or a 3-ester thereof with an anhydride of a carboxylic acid R2H, and an alkali metal salt of said acid, preferably at 100-160 DEG  C. The required aldehyde intermediate may be prepared by ozonolysis of the corresponding 3b -hydroxy- or acyloxy-11-keto-ergost-22-ene in an inert organic solvent.  The invention further relates to the preparation of esters of 3b -hydroxy-11 : 20-diketo allopregnane by treatment of the novel enol acylates with approximately one molecular proportion of ozone in an organic solvent, followed by decomposition of the resulting ozonide.  The ozonolyses are preferably conducted below 30 DEG  C., and specified inert solvents are methyl acetate, ethyl acetate, acetic acid, carbon tetrachloride, chloroform and methylene chloride. The ozonides may be decomposed with aqueous ferrous sulphate, sodium hydrosulphite, or sodium thiosulphate; zinc and acetic acid; Raney nickel or Adam's catalyst.  In examples (1) 3b -acetoxy-11-ketoergost-22-ene is ozonized in ethyl acetate, the ozonide decomposed with ferrous sulphate and 3b -acetoxy-11-ketobisnorallocholan - 22 - aldehyde isolated after extraction and chromatographic purification.  (2) As in (1) using acetic acid as solvent, and zinc dust for decomposition of the ozonide.  (3) The aldehyde from (1) is refluxed with acetic anhydride and sodium acetate to yield 3b  : 22-diacetoxy bisnorallochol-20(22)-en-11-one.  (4) Ozonolysis of this diacetate in glacial acetic acid, followed by decomposition with zinc yields 3b  - acetoxy - 11 : 20 - diketo - allopregnane isolated by extraction with ether.
Patent GB-1139155-A (GB)
Title: Antistatic additives for liquid fuels
Inventor: FORSTER ERIC OTTO
IPC: C10L1/22
Filed: 1967-03-13
Abstract: 1,139,155. Jet fuels. ESSO RESEARCH & ENG. CO. 13 March, 1967, No. 11727/67. Heading C5G. An antistatic agent of the formula X- (CH 2 ) n -Z, or X-CHR-(CH 2 ) n-1 Z, wherein X is oyano or hydroxy, Z is cyano, hydroxy, chloro or bromo, X and Z being different, R is an alkyl group having 1 to 3 carbon atoms, and n has integral values from 1-8, is added to jet fuel in an amount of 10-800 parts per million by weight. The antistatic agent can be added to the jet fuel as a concentrate containing conventional additives such as rust inhibitors, dyes, dye stabilizers and antioxidants. A volatile inert organic solvent such as benzene, xylene, toluene, diethylene glycol, or pyridine may be used as the vehicle in such a concentrate.
Patent GB-1012851-A (GB)
Title: Improvements in devices for treating hair
IPC: A45D19/18
Filed: 1963-03-25
Abstract: 1,012,851. Treating hair and furs. M. NEWMAN. March 25, 1963 [March 23, 1962, Feb. 4, 1963], No. 11730/63. Heading D1P. [Also in Divisions A3 and A4] For use in treating a few strands of hair at a time a cap, of impermeable material such as a vinyl dispersion, carries projections 18 each formed with a recess 19, the cap being puncturable at the base 20 of the recess by a hooked implement to draw through a lock of hair and the projection forming a seal around the lock. The projections may alternatively be on the inner surface of the cap which may carry markings on its outer surface indicating the location of the projections, the markings being in groups of three, of different colours or shapes to enable the cap to be used for three hair treatments. The cap may be transparent. The brim 17 can be rolled up to collect any liquid running down the cap. The cap can be used in treating wigs and in sheet form the material may be used in treating fur.
Patent GB-108725-A (GB)
Title: Improvements in and relating to Periscopes.
Inventor: VANDERLIP WASHINGTON BAKER
IPC: G02B23/08
Filed: 1916-08-18
Abstract: 108,725. Vanderlip, W. B., and Lawson, J. Aug. 18, 1916. Periscopes; reflector, telescope, and periscope systems, -The curved inclined mirror 3, at the top of the tube 1 and which produces an image viewed by means of the telescope shown at the lower end of the tube, is made with the curvature of the horizontal sections constant and double that of the constant curvature of the vertical sections taken by planes parallel to a central vertical section. Examples of the curvatures are given.
Patent GB-787946-A (GB)
Title: Nitrogen dioxide compounds of 1,3-dichloro-2-butene, and compositions containing the same
Inventor: HIVELEY JACK RAYMOND
IPC: C07C17/42
Filed: 1956-04-18
Abstract: A stable nitrogen-containing derivative of 1,3-dichloro-2-butene is prepared by reacting 0.003 to 0.74 parts by weight of nitrogen dioxide with 1 part by weight of 1,3-dichloro-2-butene at -30 DEG  to +125 DEG  C.  Preferably, the temperature is -10 DEG  to +10 DEG  C. at the beginning of the reaction which is completed at 30 DEG  to 40 DEG  C.  The product is used to stabilize 2-chloro- and 2,3-dichloro-1,3-butadienes against the growth of granular polymers, an amount of said product sufficient to give in the resulting chlorobutadiene a content of from 0.001 to 1.0 per cent by weight of combined NO2 based on the chloro-butadiene to be stabilized being used.  For this stabilization the product may be used as a dilute solution, i.e. one containing from 0.1 to 10 per cent by weight of NO2, in excess 1,3-dichloro-2-butene, in toluene, benzene, higher boiling petroleum fractions or in mixtures of these with the dichlorobutene.  The product may also be added at any suitable point to the equipment used for refining chlorobutadienes.  In examples: (1) nitrogen dioxide is added to 1,3-dichloro-2-butene at -5 DEG  to -10 DEG  C. until 0.11 part of the NO2 per part of the dichlorobutene is reacted, the mixture then being warmed to 40 DEG  C.; the process may be conducted as a continuous one; (2) a pressure vessel containing 100 grams of 2-chloro-1,3-butadiene monomer, a 0.1 gram seed of granular polymer and 0.15 per cent by weight of the inhibitor of Example (1) in a nitrogen atmosphere is maintained at 75 DEG  to 80 DEG  C. for 300 hours and no apparent growth of the seed results; a comparative experiment without the inhibitor results in polymer growth filling the vessel in 5 hours; (3) experiments similar to those of Example (2) are conducted with 2,3-dichloro-1,3-butadiene and similar results observed.
Patent GB-471989-A (GB)
Title: Improvements in or relating to brake mechanism for vehicles
IPC: B60T8/26
Filed: 1936-04-25
Abstract: 471,989. Brakes. BENDIX, Ltd., and IRVING, J. S. April 25, 1936, No. 11815. [Class 103 (i)] Brake-operating mechanism for vehicles comprises a balance bar e pivoted on a brake pedal a or lever operated thereby and connected at g to the front brakes and through a compression link j and a spring r to the rear brakes. The pedal a carries an abutment adapted to engage the bar e when the spring yields so that the bar e moves bodily with the pedal to allow an increased effort to be applied to the front brakes. The spring r may be precompressed. The link j is connected to the spring r and the rear brakes by means of a lever k on a fixed pivot l. The connecting point of the bar e and link j may be opposite the pivot b of the pedal a, so that no further increase in pressure is exerted on the rear brakes on further movement of the pedal or this point may be above the pivot in order that the pressure is decreased.
Patent GB-325743-A (GB)
Title: Improvements relating to name plates and number plates
IPC: G09F7/16
Filed: 1929-04-17
Abstract: 325,743. Stich, W. April 17, 1929. Rivets. - A soft metal rivet 3 for attaching a sign character 2 to a base plaque 1 has a split shank which is expanded into a pocket 4 in the character by being forced over a hard metal ball 5.
Patent GB-1455574-A (GB)
Title: Control systems for cyclic processes
IPC: C03B7/14
Filed: 1973-03-13
Abstract: 1455574 Automatic control EMHART (UK) Ltd 5 March 1974 [13 March 1973] 11897/73 Heading G3N The steps of a cyclic process are controlled by a train of pulses and repetition, or initiation, of a cycle determined by coincidence between pulses developed by rotors coupled to rotate at differing speeds. As shown, a handling apparatus 41 of a glassware forming machine is controlled in synchronism with a gob shears 45 through a coupled pulse generator 1 comprising gear-wheels, 10, 11 having different numbers of teeth, which are splined to a shaft 6. The gear-wheel 11 drives a gear-wheel 14 having the same number of teeth as gear-wheel 10. Each tooth of the gear-wheel 10 is sensed by an electromagnetic transducer 25 and each rotation of gear-wheels 11, 14 is sensed by transducers 19, 18 respectively. The signals from the transducers are fed through a similar amplifying and shaping systems 31, 36, 37, comprising devices such as, differential pre-amplifiers 31a amplifiers 31b and squaring amplifiers 31c. The pulse trains produced by the systems are a) from amplifier 31c used to count up a counter 32 and b) on lines 34, 35 through an AND-gate 38, enabled by a set stage of counter 32 on line 39, used at coincidence between the signals from transducers 18, 19 to reset the counter 32 through a line 40 in coincidence with a desired moment during the operation of the gob shears 45. Steps of each process cycle of the machine 41 are actuated by set counts of the counter 32 through solenoid-operated fluid valves S1-S16. The glass-forming process may comprise a plurality of process cycles and the passage of a gob of glass through all the individual handling stages may involve several cycles of the counter 32. In a modification, reset logic is employed to reset the counter 32 to zero as soon as possible at start-up.
Patent GB-591561-A (GB)
Title: Improvements relating to electric signalling systems
IPC: H04Q1/446
Filed: 1945-05-11
Abstract: 591,561. Telephone exchange systems. SIEMENS BROS. & CO.. Ltd., and CRUTGH, L.S. May 11, 1945, No. 11915. [Class 40 (iv)] Circuit arrangements for use in a,n A.C. signalling system comprise three tuned circuits, one of which (LC) is tuned to the prescribed operating frequency, while the other two (L1 C1, L2 C2) are tuned to frequencies on either side of it, the reactances of the latter two, at the prescribed frequency, being equal and opposite. As applied for use in a telephone system, the former circuit may be connected to the signal relay and the other two may be coupled and connected to a guard circuit.
Patent GB-1120305-A (GB)
Title: Three detector cycle counting means
Inventor: CHITAYAT ANWAR KHADOURY
IPC: H03K5/26
Filed: 1966-03-18
Abstract: 1,120,305. Electric selective signalling. OPTOMECHANISMS, Inc. 18 March, 1966, No. 12001/66. Heading G4H. Light from a source S, (Fig. 1) transmitted via a lens L 1 , prisms G, C 1  and a glass plate E to a further prism C 2  carried on a movable object X is delayed by the glass plate E by an amount of one sixth of a wavelength in areas 1 and 6 and by one third of a wavelength in areas 2 and 5 so that light waves from the areas 1, 6; 2, 5; and 3, 4; fed to photomultipliers F 1 , F 2 , F 3  are each out of phase with the others by one third of a fringe. The outputs P1, P2, P3 (Fig. 2) from the photomultipliers F1, F2, F3 respectively are combined to give three pairs of signals, each pair being 90 degrees apart in phase and each pair being separated in phase by 120 degrees from the others. The pairs of outputs e.g. A, B are squared and fed through pulse formers 12, 14, 12a, 12b, 12c, 12d, each pulse output e.g. Ap, Bp being combined both additively and subtractively with the other square waveform in the pair, i.e. Bs and As respectively, so that the direction of movement of the object may be determined. The outputs from the summation network are connected via signal level detectors to a reversible counter 17. The output from the counter may be used for automatic read out on punched tape, punched cards or magnetic tape.
Patent GB-649519-A (GB)
Title: Improvements in automatic shotgun
IPC: F41A9/18
Filed: 1947-05-05
Abstract: 649,519. Automatic shot-guns. SOC. ITALIANA E. BREDA PER COSTRUZIONI MECCANICHE. May 5, 1947, No. 12015. Convention date, May 4, 1946. [Class 119] An automatic shot gun of the long barrelrecoil type has its breech-block 7 locked, when in the breech closing position, by a block 9 which slides in guides in the breech-block and is slidable also with respect to a locking bolt along other guides which are inclined with respect to the first-mentioned guides. As shown in Figs. 2 and 5 the locking bolt 8, which is slidable on the breech-block 7, has an inclined projection 10 which slides in an inclined groove in the block 9. The latter serves to lock the breech-block 7 by engaging, when lifted, in a recess in the barrel extension 2. The bolt 8 carries also the firing pin 13, a hinged extension 15 acted upon by a spring 16 in the butt, and a spring-controlled nose 17 which when the rod 15 is in its most inclined position shown in Fig. 2 is lifted by a lever 151 to a locking engagement with the breech-block thus holding the bolt 8 in the retracted position. The bolt 8 carries also a hook 18 for the initial cocking. Firing and cartridge-feed mechanisms. Cartridges from a longitudinal magazine disposed beneath the barrel are fed rearwardly to a carrier 22 which rocks about a pivot 23 to raise the cartridges into a position for loading. The carrier has two rearward extensions, one carrying an operating spring 29 and the other having pivoted to it a spring-controlled hook 25 which holds the breech-block in its retracted position. The firing hammer 31 is pivoted at 30 and is acted upon by a leaf spring 45 when released by the trigger 34. Levers 37, 40, Fig. 12, pivoting about vertical axis, co-operate with the cartridges and with the carrier 22 to hold and release them at the appropriate times and to prevent double loading. A safety lever 44 is provided for the trigger. Operation. In Fig. 2 the parts are in the recoiled position after a shot has been fired; the block 9 is still in the raised locking position and the bolt 8 is held by the hook 25. The barrel now moves forwards under the action of its return spring, which surrounds the magazine, such movement dragging the breech-block 7 a sufficient distance to unlock the block. As the barrel moves forwards claws on the breech-block extract the spent case, and as the barrel reaches its forward position the extension 2 causes lever 40, Fig. 12, to release a cartridge. The latter in moving on to the carrier displaces to one side the lever 37 thus releasing the carrier which, by spring 29 now lifts the cartridge to the loading position. This movement of the carrier lowers the hook 25 thus releasing the breech-block which is now moved by spring 16 to the closed position, forcing the cartridge into the barrel. The rod 15 is not now inclined and the lever 151 and nose 17 are actuated to release the bolt 8 so that it can now move with respect to the breech-block to raise the block 9 to the locking position.
Patent GB-167539-A (GB)
Title: Improvements in electric immersion heaters
IPC: F24H3/00
Filed: 1920-04-30
Abstract: 167,539. Nolan, J. April 30, 1920. Heating by electricity; electric radiators.-An electric heater for immersion in the liquid of, for example, a radiator, comprises a case of circular rectangular or other shape closed at one end and fittad at the other with a cap carrying the terminals for the leads to electric heating- elements contained within the case. In the form shown the case consists of two D-shaped portions a facing each other and attached at one end to a bush c which screws into the radiator. Each heating-element e comprises resistance wire wound round mica plates and protected on each side by mica plates. These elements are clamped between metal plates f, one. of which is curved to fit the D-shaped case. The ends of the elements may be rabbeted so that a number may be connected together. The radiator may have a tube g fitted at the other end to diminish the quantity of water and so to permit the temperature to be raised more quickly. A nipple h with an opening i divides the lower part of the radiator into two chambers. The tubes a have tapered portions j so that, as the heating-elements are pushed in, they are forced into good contact with the sides of the tubes.